A drunken driver who killed a girl crossing Sloat Boulevard in San Francisco on her 17th birthday was sentenced Monday to six months in jail.

Kieran Brewer, 29, pleaded guilty to felony charges of vehicular manslaughter, driving under the influence and driving with a blood-alcohol content higher than the legal limit in the March 2, 2013, death of Hanren Chang.

Hanren had been walking home after celebrating her 17th birthday with friends when she was struck by Brewer's car near a crosswalk at Forest View Drive. She died a few hours later at San Francisco General Hospital.

Though Hanren's family chose not to attend Brewer's sentencing, her father wanted to know that Brewer felt remorse, said Assistant District Attorney Tiffany Sutton, adding that she told the father she believed Brewer is indeed sorry for what happened.

"He was very relieved and very happy that the matter be resolved," she said. "He expressed to me that he didn't want any more retribution."

Brewer spoke in court, offering condolences to Hanren's family and expressing sorrow.

"I made a poor decision on that night," he said, his voice choked with emotion. "There's nothing I can say or do to change the past. What I can do is move forward and live my life in honor of the victim and never forget the events of the night of March 2, 2013."

In addition to the six months in jail, Brewer was sentenced to six months in home detention, five years of probation, 300 hours of community service and a nine-month treatment program for people who have driven under the influence. He was ordered to pay the family more than $4,700 in restitution.

Over the prosecution's objections, Superior Court Judge Brendan Conroy struck down enhancements to the drunken driving charges that alleged that Brewer inflicted great bodily injury and would have counted as a strike under the state's "three strikes" law.

"I don't think the interest of justice will be served if Mr. Brewer gets this strike," Conroy said in court. "He has been consistently remorseful and cooperative with law enforcement."

Brewer's attorney, Deputy Public Defender Emily Dahm, said that the decision is appropriate and that she doesn't expect to see her client again in criminal court.

"I think he is glad for the chance to take responsibility for his actions that night," she said outside court. "He's incredibly grateful for the compassion and understanding that the family has shown. He hopes to go forward in a way that will honor Ms. Chang's memory."

After an online petition was started by Hanren's friend Anyan Cheng, city officials installed a traffic beacon last year at the intersection where the girl was struck.

Hanren was the second person killed in the intersection since 2010. She was one of 21 pedestrians who were killed in the city in 2013, the deadliest year for pedestrians since 2007.